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pollen-robotics / dtw

DTW (Dynamic Time Warping) python module
GNU General Public License v3.0
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dist value for similar audios #36

Closed enviz closed 5 years ago

enviz commented 5 years ago

https://github.com/pierre-rouanet/dtw/blob/master/examples/MFCC%20%2B%20DTW.ipynb (Under comparing them using DTW , In [4]) This is not really an issue,but a doubt rather.

I am doing a speech project in which I'm comparing the similarity between audios. Basically I have a bunch of phoneme recordings from the same voice. Some of them sound similar and some of them don't. So I am using this dist measure to quantify that similarity. And based on what i've observed so far with the samples I have,a dist value of anything less than 180 is holding true for similar sounding phoneme recordings and greater than 180 for the dissimilar ones.

Can I use this condition to compare the similarities? Please let me know. Thanks in advance.

pierre-rouanet commented 5 years ago

Hi @enviz!

Yes indeed it should work. The tricky part is to find a threshold that match for your case. It depends on lots of parameters and it's usually task dependent. It's usually found empirically. I guess that's how you found 180 in your case.